Glass-severing implement



H. M. BROWN. GLASS SEVERING IMPLEMENT. APPLICAII N FILED AUG-'20, 1919.

Patented July 13, 1920.

A TTORNEYS.

UNITED STATES 'i ATENT OFFICE.

I HARRY M. BROWN, OF BROOKLYN, NEW YORK, ASSIGNOR TO SPRING STOPPER COMPANY, OF BROOKLYN, NEW YORK, A. CORPORATION OF DELAWARE.

GLASS-SEVEBING IMPLEMENT,

Specification of Letters Patent.

Patented July 13, 1920.

' Application filed August 20, 1919. Serial N0. 318,670.

To all whom it may concern:

Be it known that I, HARRY M. BROWN, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented a new anduseful Improvement in Glass-Severing Implements, of which the following is a specification.

This invention, is in the nature of an implement for severing glass; and. the primary object of the invention is to provide an implement adapted to the purpose of severing or cracking off the end-portions of the necks of carboys or other glass containers.

It may be stated preliminarily that in the manufacture of cal-boys or other large glass containers it is customary to form the carboy-body by suitable operations, including a blowing operation on a pipe, the carboy-body being thus provided with a neckportion, and the neckportion is then placed in a suitable mold and metal or molten glass is charged therein and suitably pressed to form the head or mouth of the container. In this operation the mouth-portion of the container is given the desired contour, and may be provided with internal or external threads, if desired.

In practice, it is desirable to make the carboys of: substantially uniform height and give to the neckportion an end edge which -lies in a plane substantially perpendicular to the axis of the carboy. This is accomplished by breaking or cracking ofi the excess portion of the neck which the carboy has as the result of the method of manufacture usually employed.

The desired object is readily attained by means of the improved implement shown in the accompanying drawing, which illustrates the preferred embodiment of my invention.

In the drawing- Figure 1 represents a plan view oi the improved implement, one oi the jaws of which is shown in section; and Fig. 2, an elevational view of the implement, illustrating the manner in which it is applied to a carboy-neck in the operation of severing the neck, one of the jaws being shown brokenly.

In the construction illustrated, A represents the neck of the carboy or other glass container; and B represents the improved implement adapted for severing the neck or breaking off the excess portion of the neck.

The device B comprises a pair of levers B and B which are pivotally connected together by means of the pintle 1. In the form shown, the lever B has a substantially semicircular jaw-portion 2, an offset pivot-portion 2 and a handle 2 Similarly, the lever B has a companion aw-portion 3, an OIISGl] pivot-portion 3 and a handle-portion 3".

The levers are made of steel or other suitable metal, the handle-portions being equipped with suitable non-conductive grips, as shown. In each case, the jaw-portion is preferably tubular in cross-section, but formed with a V projection at its inner or concave side, as indicated at 4:, thus provid ing a comparatively sharp edge which is adapted to bite into the hot glass. Each jaw is thus provided with a channel 5 through which water may be circulated; and at the inner or cutting edge of each jaw are provided small perforations 6, enabling the water to spurt against the glass and follow the groove in the glass produced by the jaws when they are pressed about the neck of the container. The extremities of the jaws are equipped with tubular members, or nipples, 7, equipped with inlet and outlet hose 8 and 9. The nipples 7 preferably lie in the plane oi the jaws and extend in opposite directions from the end-portionsoi the jaws. At their base-portions, the jaws are provided with laterally projecting nipples 10, which communicate with the channels 5 of the jaws. The nipples 10 are equipped with elbows 11 and these elbows communicate with each other through a flexible hose 12, so that the water can circulate through the jaw 3, thence through the hose l2, thence through the jaw 2, and may escape through the hose 9. The inlet hose 8 may be equipped with a valve (not shown) for regulating the water pressure.

The preferred method of employing the implement is to apply it to the neck of the oarboy after the carboy has been blown and is still hot, and force the jaws into the soft glass at or adjacent the blow-pipe. By pressing the handles together, so that the jaws squeeze the neck of the carboy, grooves are formed in the neck, and the water Spurting against the glass and following the biting edges of the jaws rapidly chills the glass and causes the neck to crack where the jaws come in contact with the glass. In this manner, the excess glass may be readily removed and the neck-poition'of the carboy may be given a comparatively true edge, thus placing it-in proper condition for the subsequent operation of applying the head, or-1nouthportion, of the carboy by any approved process.

The foregoing detailed description has been given for clearness of understanding only and no unnecessary limitation should be understood therefrom, but the appended claims should be construed as broadly as permissible, in view of any priorart which may exist.

hat I regard as new and desire to secure by Letters Patent is: r

1. An implement of the character 'set forth, comprising a pair of pi votally-connected levers equipped with jaws provided with'channelsand having perforations open,- ing at their biting surfaces, and means for circulating cooling fluid through said channels' 2. An implement of the character set forth, comprising a pair of pivotally-com' nected levers equipped with concavo-convex tubular aws provided on 'the1r inner sides said jaws and flexible tubular connection betweenthe base-portions of the jaws through which water may circulate through the other jaw, and means for conducting the water away from-the last-mentioned jaw.

4. 'An implement of the character set forth, comprising a pair of pivotally connected levers equipped with tubular jaws having their end-portions provided with nipples disposed in the plane of the jaws and having their base-portions provided with laterally projecting nipples, a flexible hose connecting said laterally-proj ecting V nipples and lying in a plane parallel with the handles of the implement, and flexible hose connected with said first mentioned nipples.

HARRY M, BROWN.

" tions, means for admitting water to one of r 

